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TRILINEAR CO-ORDINATES.

Cambridge:

PRINTED BY C. J. CLAY, M. A.

AT THE UNIVERSITY PRESS.

AN ELEMENTARY TREATISE

ON

TRILINEAR CO-ORDINATES,

THE METHOD OF RECIPROCAL POLARS,

AND THE THEORY OF PROJECTIONS.

BY THE REV.

N. M. FERRERS, M. A.

FELLOW AND MATHEMATICAL LECTURER
OF GONVILLE AND CAIUS COLLEGE, CAMBRIDGE.

MACMILLAN AND CO.

Cambridge:
AND 23, HENRIETTA STREET, COVENT GARDEN,

London.

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